Display apparatus, driving method for display apparatus and electronic apparatus

1. A display apparatus, comprising: a pixel array section including a plurality of pixels arrayed in rows and columns and each of the plurality of pixels including an electro-optical device; a plurality of units that each comprise n≧2 pixels of the plurality of pixels and one pixel circuit, where each respective pixel circuit is shared by all of the pixels of the respective one of the plurality of units that includes the respective pixel circuit and each respective pixel circuit comprises a writing transistor for writing an image signal, a holding capacitor for holding the image signal written by said writing transistor, and a driving transistor for driving each of the electro-optical devices of the pixels of the respective one of the plurality of units that includes the respective pixel circuit, where n is an integer; and a plurality of scanning circuits configured to time-divisionally and selectively cause a driving current to flow through the electro-optical device of each pixel of a liven one of the plurality of pixels into a forwardly biased state units by: sequentially applying a low potential to the respective cathode electrodes of the electro-optical devices of the pixels of the given one of the plurality of units, and applying, when the low potential is applied to the cathode electrode of one the electro-optical devices of the pixels of the given one of the plurality of units, a high potential to the respective cathode electrodes of the electro-optical devices of the other pixels of the given one of the plurality of units.

2. The display apparatus according to claim 1 , wherein the plurality of scanning circuits and each unit of the plurality of units are configured to perform a mobility correction function of compensating for a dispersion in driving transistor mobilities, wherein the plurality of scanning circuits cause the mobility correction function to be performed for the given one of the plurality of units throughout a correction period the duration of which is set in advance and depends upon capacitance values of the given one of the plurality of units, which include a capacitance of the holding capacitor of the pixel circuit of the given one of the plurality of units and a capacitive component of the electro-optical device of each of the pixels of the given one of the plurality of units.

3. The display apparatus according to claim 1 , wherein each respective pixel circuit further includes a sub capacitor connected between a source electrode of the driving transistor of the respective pixel circuit and a fixed potential.

4. The display apparatus according to claim 3 , wherein the plurality of scanning circuits and each unit of the plurality of units are configured to perform a mobility correction function of compensating for a dispersion in driving transistor mobilities, wherein the plurality of scanning circuits cause the mobility correction function to be performed for a given one of the plurality of units throughout a correction period the duration of which is set in advance and depends upon capacitance values of the given one of the plurality of units, which include a capacitance of the holding capacitor of the pixel circuit of the given one of the plurality of units, a capacitance of the sub capacitor of the pixel circuit of the given one of the plurality of units, and a capacitive component of the electro-optical device of each of the pixels of the given one of the plurality of units.

5. The display apparatus according to claim 1 , wherein the plurality of scanning circuits and each respective one of the plurality of units are configured to perform a threshold correction function for the pixel circuit of the respective one of the plurality of units comprising causing a threshold voltage of the driving transistor of the pixel circuit of the respective one of the plurality of units to be written into the holding capacitor of the pixel circuit of the respective one of the plurality of units prior to the image signal being written into the holding capacitor of the pixel circuit of the respective one of the plurality of units.

6. A display apparatus, comprising: a pixel array section including a plurality of pixels arrayed in rows and columns and each of the plurality of pixels including an electro-optical device; a plurality of units that each comprise n≧2 pixels of the plurality of pixels and one pixel circuit, where each respective pixel circuit is shared by all of the pixels of the respective one of the plurality of units that includes the respective pixel circuit and each respective pixel circuit comprises a writing transistor for writing an image signal, a holding capacitor for holding the image signal written by said writing transistor, and a driving transistor for driving each of the electro-optical devices of the pixels of the respective one of the plurality of units that includes the respective pixel circuit, where n is an integer; and a plurality of scanning circuits configured to time-divisionally and selectively place the electro-optical device of each of the plurality of pixels into a forwardly biased state by selectively controlling a cathode potential of the electro-optical device of the respective pixel, wherein: at least one of the plurality of scanning circuits is connected to a plurality of driving lines; the cathode of the electro-optical device of each of the plurality of pixels is connected to one of the plurality of driving lines; the cathode of the electro-optical device of each pixel of a given one of the plurality of units is connected to a different one of the plurality of driving lines than the cathode of the electro-optical device of the other pixels of the given one of the plurality of units; and the plurality of scanning circuits are configured to sequentially place the electro-optical device of each respective pixel of a given one of the plurality of units into the forwardly biased state by selectively controlling a potential carried on the driving line connected to the cathode of the electro-optical device of the respective pixel of the given one of the plurality of units.

7. The display apparatus according to claim 6 , wherein: the plurality of units are arranged such that each respective unit of the plurality of units has n pixel positions P i , where i={1, 2, . . . n}, with each of the pixels of the respective unit being disposed in a same row and in one of the pixel positions P i of the respective unit; the plurality of driving lines are disposed such that n driving lines L i , where i={1, 2, . . . n}, are provided for each row of pixels; and for each integer value of x from 1 to n, those pixels of the plurality of pixels that are disposed in corresponding pixel positions P i=x in a same row are connected to the driving line L i=x provided for that row, and the plurality of scanning circuits are configured to place the electro-optical device of each pixel that is disposed in corresponding pixel positions P i=x in a same row into the forwardly biased state by selectively controlling a potential carried on the driving line L i=x provided for that row.

8. A driving method for a display apparatus, wherein the display apparatus includes: a pixel array section including a plurality of pixels arrayed in rows and columns and each of the plurality of pixels including an electro-optical device, and a plurality of units that each comprise n≧2 pixels of the plurality of pixels and one pixel circuit, where each respective pixel circuit is shared by all of the pixels of the respective one of the plurality of units that includes the respective pixel circuit and each respective pixel circuit comprises a writing transistor for writing an image signal, a holding capacitor for holding the image signal written by said writing transistor, and a driving transistor for driving each of the electro-optical devices of the pixels of the respective one of the plurality of units that includes the respective pixel circuit, where n is an integer; the method comprising selectively causing a driving current to flow through placing the electro-optical device of each pixel of a given one of the plurality of units by: sequentially applying a low potential to the respective cathode electrodes of the electro-optical devices of the pixels of the given one of the plurality of units, and applying, when the low potential is applied to the cathode electrode of one the electro-optical devices of the pixels of the given one of the plurality of units, a high potential to the respective cathode electrodes of the electro-optical devices of the other pixels of the given one of the plurality of units.

9. The driving method according to claim 8 , wherein each of the plurality of units is configured to be capable of performing a mobility correction function of compensating for a dispersion in driving transistor mobilities, the method further comprising: determining a duration of a correction period for the given one of the plurality of units based upon capacitance values of the given one of the plurality of units, which include a capacitance of the holding capacitor of the pixel circuit of the given one of the plurality of units and a capacitive component of the electro-optical device of each of the pixels of the given one of the plurality of units, and causing the mobility correction function to be performed for the given one of the plurality of units throughout the correction period.

10. The driving method according to claim 8 , wherein each respective pixel circuit further includes a sub capacitor connected between a source electrode of the driving transistor of the respective pixel circuit and a fixed potential.

11. The driving method according to claim 10 , wherein each of the plurality of units is configured to be capable of performing a mobility correction function of compensating for a dispersion in driving transistor mobilities, the method further comprising: determining a duration of a correction period for the given one of the plurality of units based upon capacitance values of the given one of the plurality of units, which include a capacitance of the holding capacitor of the pixel circuit of the given one of the plurality of units, a capacitance of the sub capacitor of the pixel circuit of the given one of the plurality of units, and a capacitive component of the electro-optical device of each of the pixels of the given one of the plurality of units, and causing the mobility correction function to be performed for the given one of the plurality of units throughout the correction period.

12. The driving method according to claim 8 , the method further comprising performing a threshold correction function of causing a threshold voltage of the driving transistor of the pixel circuit of a given one of the plurality of units to be written into the holding capacitor of the pixel circuit of the given one of the plurality of units prior to the image signal being written into the holding capacitor of the pixel circuit of the given one of the plurality of units.

13. A driving method for a display apparatus, wherein the display apparatus includes: a pixel array section including a plurality of pixels arrayed in rows and columns and each of the plurality of pixels including an electro-optical device, and a plurality of units that each comprise n≧2 pixels of the plurality of pixels and one pixel circuit, where each respective pixel circuit is shared by all of the pixels of the respective one of the plurality of units that includes the respective pixel circuit and each respective pixel circuit comprises a writing transistor for writing an image signal, a holding capacitor for holding the image signal written by said writing transistor, and a driving transistor for driving each of the electro-optical devices of the pixels of the respective one of the plurality of units that includes the respective pixel circuit, where n is an integer; the method comprising selectively placing the electro-optical device of each of the plurality of pixels into a forwardly biased state by selectively controlling a cathode potential of the electro-optical device of the respective pixel, wherein at least one of the plurality of scanning circuits is connected to a plurality of driving lines, the cathode of the electro-optical device of each of the plurality of pixels is connected to one of the plurality of driving lines, and the cathode of the electro-optical device of each pixel of a given one of the plurality of units is connected to a different one of the plurality of driving lines than the cathode of the electro-optical device of the other pixels of the given one of the plurality of units, and wherein the method further comprises: sequentially placing the electro-optical device of each respective pixel of a given one of the plurality of units into the forwardly biased state by selectively controlling a potential carried on the driving line connected to the cathode of the electro-optical device of the respective pixel of the given one of the plurality of units.

14. The driving method according to claim 13 , wherein: the plurality of units are arranged such that each respective unit of the plurality of units has n pixel positions P i , where i={1, 2, . . . n}, with each of the pixels of the respective unit being disposed in a same row and in one of the pixel positions P i of the respective unit; the plurality of driving lines are disposed such that n driving lines L i , where i={1, 2, . . . n}, are provided for each row of pixels; and for each integer value of x from 1 to n, those pixels of the plurality of pixels that are disposed in corresponding pixel positions P i=x in a same row are connected to the driving line L i=x provided for that row, and the plurality of scanning circuits are configured to place the electro-optical device of each pixel that is disposed in corresponding pixel positions P i=x in a same row into the forwardly biased state by selectively controlling a potential carried on the driving line L i=x provided for that row.